Company lists · Data refreshed September 2026

Top 25 IT consulting support companies based in the United Kingdom

Name: IT consulting support companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 5,415 companies tracked

RevenueBase identified 5,415 company matches for IT consulting support companies associated with the United Kingdom as of September 2026 and tracks 71,273 professional contacts across them, including 28,060 with verified work emails and 3,861 with mobile numbers. London is the largest hub.

This list covers company matches for IT consulting support companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built

5,415Companies

71,273Contacts tracked

28,060Verified emails

3,861Mobile numbers

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The 25 largest IT consulting support companies based in the United Kingdom

Ranked by team size

Top 25 of 5,415 company matches for IT consulting support companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Endava	Exact match	London, United KingdomHQ recorded Sep 27, 2026	10001+	9,653 contacts →
	Exact match “For over two decades, we have been harnessing technology to drive meaningful change.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Logicalis	Exact match	Maidenhead, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	1,372 contacts →
	Exact match “We are Architects of Change™.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Nasstar	Exact match	Wakefield, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	844 contacts →
	Exact match “Complexity isn’t the enemy.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Bytes Software Services	Exact match	Leatherhead, United KingdomHQ recorded Sep 27, 2026	501-1,000	766 contacts →
	Exact match “Bytes is a leading provider of world-class IT solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	MTI	Exact match	Staines-upon-thames, United KingdomHQ recorded Sep 27, 2026	201-500	764 contacts →
	Exact match “MTI provides award-winning, end-to-end technology solutions and services in cyber security and data centre for over 35 years.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	TSG	Exact match	Gateshead, United KingdomHQ recorded Sep 27, 2026	201-500	748 contacts →
	Exact match “TSG: The Technology Partner for Ambitious Businesses We're not a reseller.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Exponential-E	Exact match	London, United KingdomHQ recorded Sep 27, 2026	501-1,000	667 contacts →
	Exact match “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Systal Technology Solutions	Exact match	Glasgow, United KingdomHQ recorded Sep 27, 2026	501-1,000	647 contacts →
	Exact match “Systal is a global managed network, cloud and security transformation specialist.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Dimension Data UKI	Exact match	Fleet, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	540 contacts →
	Exact match “Dimension Data uses the power of technology to help organisations achieve great things.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	XMA	Exact match	Reading, United KingdomHQ recorded Sep 27, 2026	501-1,000	538 contacts →
	Exact match “Unlock your potential with XMA.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	ACORA	Exact match	Burgess Hill, United KingdomHQ recorded Sep 27, 2026	501-1,000	423 contacts →
	Exact match “We’ve been on a mission to bring together people and technology since the day we were founded over 25 years ago.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Trustmarque	Exact match	York, United KingdomHQ recorded Sep 27, 2026	501-1,000	421 contacts →
	Exact match “Trustmarque delivers the value of technology to bring real-life impact.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Zenzero	Exact match	London, United KingdomHQ recorded Sep 27, 2026	501-1,000	401 contacts →
	Exact match “We believe successful businesses are underpinned by quality IT infrastructure.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	CCS Media Limited Advania UK	Exact match	Chesterfield, United KingdomHQ recorded Sep 27, 2026	201-500	375 contacts →
	Exact match “CCS Media is now officially part of Advania UK, the tech company with people at heart.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Littlefish	Exact match	Nottingham, United KingdomHQ recorded Sep 27, 2026	201-500	364 contacts →
	Exact match “Littlefish is a multi-award-winning Managed IT Services Provider that continues to grow consistently and significantly through tangibly delivering on our promises of enhanced user…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Maintel	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	341 contacts →
	Exact match “Maintel is a communications managed services provider.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	CHESS	Exact match	Alderley Edge, United KingdomHQ recorded Sep 27, 2026	201-500	337 contacts →
	Exact match “Chess ICT is the UKs leading independent technology service provider, employing more than 240 people across the UK and supporting over customers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Reliance Infosystems	Exact match	West End, United KingdomHQ recorded Sep 27, 2026	201-500	326 contacts →
	Exact match “As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Purview	Exact match	Edinburgh, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	323 contacts →
	Exact match “Purview is a premier provider of IT Engineering and Talent Solutions to mid-market and Fortune 500 companies globally.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Cartesian	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	302 contacts →
	Exact match “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	BOXXE	Exact match	Hemel Hempstead, United KingdomHQ recorded Sep 27, 2026	201-500	295 contacts →
	Exact match “boxxe is a leading provider of hardware, software, and managed IT services for public and private sector organisations.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Total IT Global	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	286 contacts →
	Exact match “At Total IT Global, we elevate your digital journey with cutting-edge innovation, to achieve your vision of ‘the enterprise of the future’.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Intercity	Exact match	Birmingham, United KingdomHQ recorded Sep 27, 2026	201-500	272 contacts →
	Exact match “At Intercity, we help you Do More with Technology, Cloud & Security, Communications and Managed IT services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Aspire Technology Solutions	Exact match	Gateshead, United KingdomHQ recorded Sep 27, 2026	201-500	266 contacts →
	Exact match “Welcome to Aspire Technology Solutions!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	ARO Technology	Exact match	Liverpool, United KingdomHQ recorded Sep 27, 2026	201-500	257 contacts →
	Exact match “ARO is an award-winning IT Services and Solutions provider with almost 30 years of expertise in Cloud, Cyber Security, IT Collaboration, Data Centre Services, and Sustainability.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT consulting support companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,415 IT consulting support companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 28,060 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT consulting support companies based in the United Kingdom at a glance

As of Sep 27, 2026

39.4%Verified-email coverage

5.4%Mobile-number coverage

13.2Average contacts per company

1-10Median size (employees)

26.6%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

3,477

11-50

1,414

51-200

352

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

16,2130–30

11,00231–60

73461–90

2290–180

89180+

Company record updated

Median 92.0d

00–30

6,76831–60

28,01761–90

31,98890–180

4,500180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “IT consulting support companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 28,060 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT consulting support companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT consulting support companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT consulting support companies are there based in the United Kingdom?

RevenueBase identified 5,415 company matches for IT consulting support companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Endava tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT consulting support companies?

London leads with 1439 company records, followed by Manchester (116) and Birmingham (89).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 28,060 professional contacts with verified work emails tracked across these 5,415 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.